it seems that the server for Adblockrules.org is down. So the rules can"t be downloaded for now.
In certain circumstances, especially if you changed DNS on IPCOP, and you are using for example Norton DNS, there are errors in rules file (adblockrules.script.action file).
These errors prevent Privoxy to restart correctly.
So, you can for now disable Ad-Block rules, and restart Privoxy.

I will post a new message when the server will work fine. (and will do a fix if necessary).
Regards.
ShelbyGT500